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dc.contributor.authorNguyen, B.
dc.contributor.authorSutinjo, Adrian
dc.contributor.authorWayth, Randall
dc.date.accessioned2019-02-19T04:16:05Z
dc.date.available2019-02-19T04:16:05Z
dc.date.created2019-02-19T03:58:20Z
dc.date.issued2018
dc.identifier.citationNguyen, B. and Sutinjo, A. and Wayth, R. 2018. Analysis of radio frequency interference mitigation using two reference antennas and closure relations in interferometric arrays, pp. 493-496.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/74193
dc.identifier.doi10.1109/ICEAA.2018.8520456
dc.description.abstract

© 2018 IEEE. Radio-frequency interference (RFI) is a critical problem in radio astronomy observations. A powerful RFI mitigation technique introduced by Briggs in 2000, uses closure relations and an independent reference signal to estimate and effectively remove RFI term from the power spectra of dish-based telescopes. However, the proposed technique assumes reference antennas receive zero or negligible astronomical signal, which causes biased error in the outcome of cancellation, especially for low-frequency interferometric arrays with wide field of view (FoV). This paper revisits the proposed technique for RFI removal of interferometric arrays using two reference antennas with significant sky signal. The relationship between the residual error of the cancellation and the pattern of the reference antenna is investigated, providing a general guideline on design specifications of the reference antennas. This analysis potentially leads to further application in any wide FoV telescopes to alleviate the contamination of terrestrial FM and Digital TV RFI broadcast signals in radio astronomy observations.

dc.titleAnalysis of radio frequency interference mitigation using two reference antennas and closure relations in interferometric arrays
dc.typeConference Paper
dcterms.source.startPage493
dcterms.source.endPage496
dcterms.source.titleProceedings of the 2018 20th International Conference on Electromagnetics in Advanced Applications, ICEAA 2018
dcterms.source.seriesProceedings of the 2018 20th International Conference on Electromagnetics in Advanced Applications, ICEAA 2018
dcterms.source.isbn9781538667620
curtin.departmentCurtin Institute of Radio Astronomy (Physics)
curtin.accessStatusFulltext not available


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